Friction device for shuttles.



W. J. D. LONG.

FRICTION DEVICE FOR SHUTTLES. APPLICATION FILED SEPTJZ. 1917.

1 ,27 9, 38 3 Patented Sept. 17, 1918.

WILLIAM J. D. LONG, OFGREENVILLE, SOUTH CAROLINA.

FRICTION DEVICE FOR SI-IUTTLES.

' Specification of Letters Patent.

Patented Sept. 17, 1918.

Application filed September 12, 1917. Serial No. 190,985.

To all whom it may concern:

Be it known that 1, WILLIAM J. D. LONG, a citizen of the United States,residing at Greenville, in the county of Greenville and State of SouthCarolina, have invented certain new and useful Improvements in FrictionDevices for Shuttles, of which the following is a specification,reference being had to the accompanying drawings.

This invention relates to shuttles, and particularly to the means forguiding the yarn through the end of the shuttle.

The general object of my invention is to provide a friction and eye forthe yarn, so constructed that the yarn may be readily inserted in theshuttle through the friction device and the eye, butcannot come out ofthe slot in the shuttle, nor become unthreaded from the eye and thefriction device.

, A further object of the invention is to provida a device of this kindwhich will readily guide the yarn or thread into the shuttle.

A further object is to provide a construction of this kind in which thefriction device and the eye may be readily removed from the shuttle.

Other objects will appear in the course of the following description.

My invention is illustrated in the accom panying drawings, whereinFigure 1 is a plan View of a portion of a shuttle embodying theimprovements of my invention;

Fig. 2 is a side elevation of the construction illustrated in Fig. 1;

Fig. 3 is a transverse section on the line 3-3 of Fig. 1; v

Fig. 4 is also a broken longitudinal sectional view on the line H ofFig. 1;

Figs. 5 and 6 are detailed views of the friction device detached; and

Fig. 7 is a similar view of an eye employed in the device.

Referring to the drawings, it will be seen that 10 designates a shuttleof any ordinary or usual form and formed withthe seat 11 for thefriction device 12. Extendin from the seat 11 transversely of the shutte is a bore 13, this bore extending entirely through the shuttle andterminating on one side in a countersink 14:. Extending from about themiddle of the seat 11 forward and toward one side of the shuttle is thekerf or vertically disposed slot 15 and extending horizontally from thisslot to the bore 13 is the h rm nal e191; k f The 5 d? of the shuttle isformed with a groove 17, which intersects the bore 13 and the slot 16.

Disposed within the seat 11 is the friction device, which comprises ametallic member formed with a straight vertical inner face 18, with anoutwardly projecting flange 19 at its lower end through which a screw 20passes holding thefriction device to' its seat. Through the member 18extends a bore 21 and intersecting this bore is a diagonal slot or kerf22, the inner end of this kerf intersecting the bore at one side of thebore and extending tangentially thereto, while the other end of the kerfintersects the bore at theother side of the bore. The member 18 istransversely slotted as at 23 and disposed 1n this slot and passingacross the opening 21 is a strip of felt 2 1 filling this slot, thisfelt having a small split 21 through it coinciding with the bore 21, sothat the thread or yarn passes through this opening on the felt, thefelt actingrto put a tension or restriction upon the outward movement ofthe yarn.

Disposed in the bore 13 and extending transversely across the shuttle isthe eye 25. This eye is cylindrical in form and tubular and at one endit is formed with a screwthreaded head 26, the opposite end of the eyehaving its corners rounded off as at 2.7. One side of this cylindricaleye is cutaway as at 28, this cut-away portion extending inward nearlythrough the central bore of the eye and the lower face of the eye islongitudinally slotted as at 29, this slot extending inward andintersecting the cuthead 26 has screw-threaded engagement in thecountersink 14 and the eye extends nearly through the shuttle. The slot29 opens upon the bottom wall of the bore 13 and this bottom wall isslightly cut away as at 30, so as to leave a space between this faceofthe eye and the floor of the bore, so that thethread or yarn may bepassed through the slot 16 beneath the under face of the eye and upthrough the slot 29.

In practical use, this device permits the ready threading of theshuttle, but the ar rangement of the eye and friction device absolutelyprevents the unthreading ofthe shuttle, which is a mor or less commonoccurrence, under ordinary circumstances, and is extremely vexatious. Itwill be seen that e a thre in order be asthma the shuttle, must bebrought down so as to pass through the slot 29, and this is impossiblefor the reason that the thread passes over the rear inner wall of thecutaway portion 28 and then passes down through the bore at inclinatiqnto the bore so that it is impossible to get the thread or yarn backthrough the slot in the barrel forming the eye and hence back throughthe kerfs 16 and 15. At thesame time the friction 'de vice is readilyremoved from the shuttle Whenever necessary, in order to remove thefelt, and the eye is also readily removed at any time if for any reasonit is desired to unthread the shuttle. So long as the triotion device isin place, however, and solong as the eye is in place, there is nopossible chance to unthread the shuttle.

Having thus described my invention, What I claim is:

r l. A friction device for shuttles comprising a body having anapertured base adapted to receive an attaching screw and a normallyvertical portion extending therefrom and having a thickness less thanthe thick ness of the base and provided with a horizontally extendingbore and With a slot extending from the upper end of the body andtangentially intersecting the bore, the body being transversely slottedand said slot intersecting the bore, and a piece of textile ztabricdisposed in said last named slot "finale; o t s p ent ay sa i n rextending across the bore, the fabric having a slit extending .from thelower end of the sore tithe body having a thickness lesstha'n thediameter of the base and having a 40 rounded outer face, the body havinga bore extending longitudinally through it parallel to the under -faceofthe base and having a vertically extending slot obliquely disposed tothe bore, the inner end of this slot interseeting the bore tangentiallyat one side thereof and the outer end of the slot interseating the boretangentially at the other end thereof, said :body being formed with atransverse slot extending upward from the base and intersecting thebore, and a strip of fabric disposed in said last named slot andextending across the bore in the body, the fabric having a slitextending to the middle vof the bore, the outer end oi the slitcoinciding with the inner end of the first named slot in the body.

In testimony whereof I hereunto aiiix my signature in the presence oftwo Witnesses.

J. D. LONG.

Witnesses:

N. H. KNIGHT, ADAM ,C. WELBOBN.

the tents sash by manning the fiqnnmi aeee 91' same, Waghjngton, D. G.

